Cosmos Sensation Mix Flower Seeds
Grow tall, colourful cosmos with masses of single flowers in shades of pink, magenta, lavender and white. Sensation Mix (Cosmos bipinnatus) is a classic open-pollinated annual producing attractive daisy-like flowers above fine, feathery green foliage.
Sensation Mix typically grows approximately 120–140 cm tall, producing branching plants topped with single flowers approximately 7.5–10 cm across. The mixture provides a varied display of pink, magenta, lavender and white flowers throughout the flowering period.
Easy to grow in a sunny position, Sensation Mix is well suited to cottage gardens, flower beds, borders, mass plantings and cutting gardens. The long stems and colourful flowers also make it a useful variety for fresh bouquets.
Cosmos Sensation Mix Seed Details
| Botanical name | Cosmos bipinnatus |
|---|---|
| Variety | Sensation Mix |
| Seed type | Open-pollinated, heirloom |
| Plant type | Annual flowering plant |
| Flower colour | Mixed pink, magenta, lavender and white |
| Flower type | Single, daisy-like flowers |
| Flower size | Approximately 7.5–10 cm across |
| Approximate height | Approximately 120–140 cm |
| Approximate flowering | Approximately 75–90 days under suitable conditions |
| Position | Full sun |
| Sowing method | Direct sow or raise seedlings for transplanting |
| Approximate sowing depth | Approximately 5–6 mm |
| Typical germination | Approximately 7–10 days at suitable temperatures |
| Plant spacing | Approximately 23–30 cm |
| Uses | Cut flowers, cottage gardens, flower beds, borders and mass plantings |
Why Grow Cosmos Sensation Mix?
- Colourful mixture of pink, magenta, lavender and white flowers.
- Large single flowers approximately 7.5–10 cm across.
- Tall, graceful plants with fine, feathery foliage.
- Excellent for cottage gardens, borders and mass plantings.
- Long stems suitable for fresh cut-flower arrangements.
- Open-pollinated heirloom variety.
- Easy to establish by direct sowing in suitable conditions.
- Flowers can attract bees, butterflies and other beneficial insects to the garden.
How to Grow Cosmos Sensation Mix
Sensation Mix is an easy-growing annual that performs best in a sunny, well-drained position. Cosmos generally does not require highly fertile soil, and excessive nitrogen can encourage abundant leafy growth at the expense of flowers.
- Choose a sunny position.
Select an open garden bed or growing area receiving plenty of direct sunlight. Full sun encourages strong growth and abundant flowering. - Prepare the soil.
Cultivate the soil sufficiently to create a loose seedbed and remove competing weeds. Good drainage is important, while excessively rich or heavily fertilised soil is unnecessary. - Sow the seed.
Sow Sensation Mix cosmos seeds approximately 5–6 mm deep, covering them lightly with soil. Seeds can be direct sown into their final position or raised as seedlings for later transplanting. - Maintain moisture during germination.
Water gently after sowing and keep the soil moderately moist while seeds establish. Germination typically occurs in approximately 7–10 days under suitable conditions. - Thin or space the plants.
Allow approximately 23–30 cm between established plants. Adequate spacing promotes branching, airflow and stronger stems. - Water as plants establish.
Keep young plants adequately watered while they establish. Once growing strongly, cosmos can tolerate relatively dry conditions, although prolonged drought can reduce flowering. - Pinch for branching if required.
Pinching young plants can encourage branching and produce additional flowering stems, particularly when cosmos is being grown for cutting. - Remove spent flowers.
Regularly cutting flowers or removing faded blooms encourages plants to continue producing new flowers over a longer period.
Sensation Mix Flowers
Sensation Mix produces classic single cosmos flowers in a mixture of pink, magenta, lavender and white. Individual flowers are approximately 7.5–10 cm across and are carried above finely divided, feathery foliage.
The simple flower form and varied colours give Sensation Mix a relaxed cottage-garden appearance. Plants can be grouped together for a colourful mass display or combined with other annual flowers in mixed beds and borders.
Cosmos Sensation Mix as a Cut Flower
Sensation Mix is well suited to cutting gardens and fresh bouquets. Its tall growth, branching habit and colourful single flowers provide useful stems for informal floral arrangements.
For cut-flower use, harvest stems when the petals are beginning to open but have not yet fully flattened. Place freshly cut stems into clean water promptly.
Regular cutting can also encourage plants to continue developing new flowering stems.
What Colours Are in Cosmos Sensation Mix?
Sensation Mix produces flowers in a range of pink, magenta, lavender and white shades.
Because it is a seed mixture, individual plants will produce different flower colours. Planting several plants together creates the characteristic mixed display.
The colours combine easily with white, blue, purple, yellow and other pink flowers in cottage gardens and mixed bouquets.
How Quickly Does Cosmos Sensation Mix Flower?
Sensation Mix generally begins flowering in approximately 75–90 days from sowing under favourable conditions.
Actual flowering time varies according to temperature, sunlight, soil conditions, moisture and sowing date.
Regularly removing spent blooms once flowering begins can encourage continued flower production.
How Tall Does Cosmos Sensation Mix Grow?
Sensation Mix typically grows approximately 120–140 cm tall under suitable growing conditions.
The tall plants develop fine foliage and branching flowering stems, creating an airy appearance despite their height.
Plants grown in exposed or windy locations may benefit from shelter or support, particularly once they become heavily branched.
Spacing Cosmos Sensation Mix
Approximately 23–30 cm between plants provides a useful general spacing for Sensation Mix.
Adequate spacing allows plants to branch while maintaining airflow through the foliage. Wider spacing can produce larger, more heavily branched individual plants, while closer planting can create a denser mass display.
For cut-flower production, spacing can be adjusted according to the stem length, branching and plant density required.
Should Cosmos Sensation Mix Be Deadheaded?
Yes. Regular deadheading helps keep Sensation Mix producing flowers for a longer period.
Remove faded blooms before they develop mature seed if continued flowering is the priority. Plants grown for cut flowers receive a similar benefit from regular harvesting because removing flowering stems encourages additional growth.
If you want plants to self-seed, allow some flowers to remain on the plants and mature towards the end of the flowering season.
Does Cosmos Sensation Mix Attract Pollinators?
Yes. The open, single flowers of Sensation Mix are accessible to a range of visiting insects and can attract bees, butterflies and other beneficial insects when in flower.
This makes cosmos useful in mixed flower gardens, vegetable-garden borders and other plantings where flowering plants are being incorporated to increase floral diversity.
Tips for Growing Cosmos Sensation Mix Successfully
- Grow in full sun for strong growth and abundant flowering.
- Use well-drained soil and avoid excessive fertiliser.
- Sow approximately 5–6 mm deep and cover the seed lightly.
- Maintain moderate moisture while seeds germinate.
- Allow approximately 23–30 cm between established plants.
- Pinch young plants if additional branching is desired.
- Avoid excessive nitrogen, which can encourage foliage rather than flowers.
- Protect tall plants from strong winds in exposed locations.
- Cut flowers regularly for fresh arrangements.
- Deadhead faded flowers to encourage continued blooming.
Frequently Asked Questions
What is Cosmos Sensation Mix?
Sensation Mix is an open-pollinated variety of Cosmos bipinnatus producing tall plants with single flowers in mixed shades of pink, magenta, lavender and white.
What colours are in Cosmos Sensation Mix?
The mixture produces pink, magenta, lavender and white flowers. Individual plants may vary in colour.
How tall does Cosmos Sensation Mix grow?
Plants typically reach approximately 120–140 cm tall under suitable growing conditions.
How long does Cosmos Sensation Mix take to flower?
Sensation Mix generally flowers in approximately 75–90 days from sowing under favourable conditions.
How large are Sensation Mix cosmos flowers?
Individual single flowers are typically approximately 7.5–10 cm across.
Is Cosmos Sensation Mix suitable for cut flowers?
Yes. Sensation Mix produces tall flowering stems and colourful blooms suitable for fresh bouquets and informal floral arrangements.
How deep should Cosmos Sensation Mix seeds be planted?
Sow the seeds approximately 5–6 mm deep, covering them lightly with soil.
How long does Cosmos Sensation Mix take to germinate?
Seeds typically germinate in approximately 7–10 days under suitable conditions, with temperatures around 20–22°C particularly suitable for germination.
Does Cosmos Sensation Mix need full sun?
Yes. Full sun is recommended for strong plant growth and abundant flowering.
How far apart should Sensation Mix cosmos be planted?
Approximately 23–30 cm between established plants provides a useful general spacing.
Should Sensation Mix cosmos be deadheaded?
Yes. Removing faded flowers encourages continued blooming and prevents plants from directing all their energy into seed production.
Does Cosmos Sensation Mix attract bees and butterflies?
Yes. The open single flowers can attract bees, butterflies and other beneficial insects while the plants are flowering.
Is Cosmos Sensation Mix an annual?
Yes. Cosmos bipinnatus Sensation Mix is grown as an annual flowering plant.
Is Cosmos Sensation Mix open-pollinated?
Yes. Sensation Mix is an open-pollinated heirloom cosmos variety rather than an F1 hybrid.
Grow Cosmos Sensation Mix for Colourful Summer Flowers
Sensation Mix combines tall, graceful plants with fine foliage and colourful single flowers in shades of pink, magenta, lavender and white.
Easy to incorporate into cottage gardens, flower borders, mass plantings and cutting gardens, this classic cosmos provides an extended display when flowers are regularly cut or deadheaded.
Whether grown for garden colour, pollinator-friendly planting or fresh bouquets, Sensation Mix is a versatile annual flower for sunny garden spaces.
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